EP0592048A3 - Bar code detecting circuitry - Google Patents

Bar code detecting circuitry Download PDF

Info

Publication number
EP0592048A3
EP0592048A3 EP19930202839 EP93202839A EP0592048A3 EP 0592048 A3 EP0592048 A3 EP 0592048A3 EP 19930202839 EP19930202839 EP 19930202839 EP 93202839 A EP93202839 A EP 93202839A EP 0592048 A3 EP0592048 A3 EP 0592048A3
Authority
EP
European Patent Office
Prior art keywords
bar code
code detecting
detecting circuitry
circuitry
bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP19930202839
Other versions
EP0592048A2 (en
Inventor
Randal Steven Butturini
Ernest W Cooley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ortho Clinical Diagnostics Inc
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP0592048A2 publication Critical patent/EP0592048A2/en
Publication of EP0592048A3 publication Critical patent/EP0592048A3/en
Ceased legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S235/00Registers
    • Y10S235/901Bar code reader specialized to read code on a highly reflective surface
EP19930202839 1992-10-09 1993-10-06 Bar code detecting circuitry Ceased EP0592048A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/959,208 US5461223A (en) 1992-10-09 1992-10-09 Bar code detecting circuitry
US959208 1992-10-09

Publications (2)

Publication Number Publication Date
EP0592048A2 EP0592048A2 (en) 1994-04-13
EP0592048A3 true EP0592048A3 (en) 1994-09-07

Family

ID=25501780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930202839 Ceased EP0592048A3 (en) 1992-10-09 1993-10-06 Bar code detecting circuitry

Country Status (5)

Country Link
US (5) US5461223A (en)
EP (1) EP0592048A3 (en)
JP (1) JPH06215167A (en)
CA (1) CA2106715C (en)
TW (1) TW232737B (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3246824B2 (en) * 1994-01-18 2002-01-15 登 山口 Ambient noise suppression circuit for voice communication terminals
US5637853A (en) * 1995-07-28 1997-06-10 Symbol Technologies, Inc. Reading indicia by analysis of different light reflecting portions based on signal-to-noise ratios
US6272360B1 (en) 1997-07-03 2001-08-07 Pan Communications, Inc. Remotely installed transmitter and a hands-free two-way voice terminal device using same
EP0981198A3 (en) * 1998-08-19 2001-09-12 Harris Corporation Improved signal detector
WO2000016240A1 (en) * 1998-09-14 2000-03-23 Psc Scanning, Inc. Fast edge detection system tolerant of high degree of intersymbol interference
KR100624388B1 (en) * 1998-11-13 2006-09-19 토릭 리미티드 Anti-jitter circuits
PT1509256E (en) 2002-05-24 2009-10-15 Angiotech Int Ag Compositions and methods for coating medical implants
US7216811B2 (en) * 2004-04-16 2007-05-15 Microscan Systems Incorporated Barcode scanner with linear automatic gain control (AGC), modulation transfer function detector, and selectable noise filter
EP2476756A1 (en) * 2005-06-15 2012-07-18 Massachusetts Institute of Technology Amine-containing lipids and uses thereof
WO2007057008A1 (en) * 2005-11-21 2007-05-24 Saxo Bank A/S A financial trading system
DE602007012823D1 (en) * 2007-03-07 2011-04-14 Martin Charles Circuit and method for checking the impedance of electrodes and controlling the intensity of an electrical stimulus
US8358937B2 (en) * 2007-05-24 2013-01-22 Applied Optoelectronics, Inc. Systems and methods for reducing clipping in multichannel modulated optical systems
US8165475B2 (en) * 2007-05-24 2012-04-24 Applied Optoelectronics Systems and methods for reducing clipping in multichannel modulated optical systems
US8165474B2 (en) * 2008-03-21 2012-04-24 Applied Optoelectronics, Inc. Reducing cross modulation in multichannel modulated optical systems with anti-clipping
EP2124136B1 (en) * 2008-05-23 2012-08-22 Charles Martin Hands-free device for remote control
MX2011004859A (en) 2008-11-07 2011-08-03 Massachusetts Inst Technology Aminoalcohol lipidoids and uses thereof.
PT2506857T (en) 2009-12-01 2018-05-14 Translate Bio Inc Delivery of mrna for the augmentation of proteins and enzymes in human genetic diseases
US9193827B2 (en) 2010-08-26 2015-11-24 Massachusetts Institute Of Technology Poly(beta-amino alcohols), their preparation, and uses thereof
EP2691443B1 (en) 2011-03-28 2021-02-17 Massachusetts Institute of Technology Conjugated lipomers and uses thereof
TR201910686T4 (en) 2011-06-08 2019-08-21 Translate Bio Inc Lipid nanoparticle compositions and methods for Mrna delivery.
US8891974B2 (en) 2012-03-30 2014-11-18 Applied Optoelectronics, Inc. Distortion compensation circuit including tunable phase path
US20150267192A1 (en) 2012-06-08 2015-09-24 Shire Human Genetic Therapies, Inc. Nuclease resistant polynucleotides and uses thereof
PL2968586T3 (en) 2013-03-14 2019-01-31 Translate Bio, Inc. Cftr mrna compositions and related methods and uses
EA201591229A1 (en) 2013-03-14 2016-01-29 Шир Хьюман Дженетик Терапис, Инк. METHODS OF CLEANING MATRIX RNA
US9315472B2 (en) 2013-05-01 2016-04-19 Massachusetts Institute Of Technology 1,3,5-triazinane-2,4,6-trione derivatives and uses thereof
EP3060258A1 (en) 2013-10-22 2016-08-31 Shire Human Genetic Therapies, Inc. Mrna therapy for phenylketonuria
NZ718817A (en) 2013-10-22 2020-07-31 Massachusetts Inst Technology Lipid formulations for delivery of messenger rna
EP4276176A3 (en) 2013-10-22 2024-01-10 Translate Bio, Inc. Mrna therapy for argininosuccinate synthetase deficiency
EA201691696A1 (en) 2014-04-25 2017-03-31 Шир Хьюман Дженетик Терапис, Инк. METHODS OF CLEANING MATRIX RNA
AU2015266764B2 (en) 2014-05-30 2019-11-07 Translate Bio, Inc. Biodegradable lipids for delivery of nucleic acids
CN106795142B (en) 2014-06-24 2022-11-04 川斯勒佰尔公司 Stereochemically enriched compositions for delivery of nucleic acids
WO2016004202A1 (en) 2014-07-02 2016-01-07 Massachusetts Institute Of Technology Polyamine-fatty acid derived lipidoids and uses thereof
MA47603A (en) 2017-02-27 2020-01-01 Translate Bio Inc NEW ARNM CFTR WITH OPTIMIZED CODONS
WO2018213476A1 (en) 2017-05-16 2018-11-22 Translate Bio, Inc. Treatment of cystic fibrosis by delivery of codon-optimized mrna encoding cftr
DE112017008189B4 (en) * 2017-12-13 2021-05-12 Mitsubishi Electric Corporation FAULT DETECTION CIRCUIT
CA3108544A1 (en) 2018-08-24 2020-02-27 Translate Bio, Inc. Methods for purification of messenger rna

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219152A (en) * 1979-02-21 1980-08-26 International Business Machines Corporation Dual threshold comparator circuit
US4243876A (en) * 1979-07-25 1981-01-06 Westinghouse Electric Corp. Background light intensity compensation circuit for a line scan camera system
EP0240767A2 (en) * 1986-04-10 1987-10-14 Hewlett-Packard Company Digital bar code slot reader
US4833309A (en) * 1987-06-13 1989-05-23 Tohoku Ricoh Co., Ltd. Bar-code reading apparatus
EP0400969A1 (en) * 1989-05-30 1990-12-05 Fujitsu Limited Circuitry for processing an analog signal obtained by scanning a bar code
EP0433593A2 (en) * 1989-11-20 1991-06-26 Symbol Technologies, Inc. Bar code symbol readers with edge enhancement

Family Cites Families (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731571A (en) * 1945-12-27 1956-01-17 Chance Britton Delay circuit
US2975367A (en) * 1957-01-10 1961-03-14 Itt Maximum slope pulse detector
US2927223A (en) * 1957-11-27 1960-03-01 Sperry Rand Corp Temperature compensated limiter circuits
US3078377A (en) * 1959-03-09 1963-02-19 Ibm Limiting amplifier employing non-saturating transistors for providing inphase squarewave output from distorted wave input
US3085131A (en) * 1960-08-31 1963-04-09 Gen Electric Transistorized video black clipper
US3183446A (en) * 1962-03-15 1965-05-11 Weston Instruments Inc Electrical signal comparator
US3303425A (en) * 1963-04-09 1967-02-07 Atlantic Res Corp Binary detection system
US3260950A (en) * 1963-11-08 1966-07-12 Bell Telephone Labor Inc Capacitor coupled feedback amplifier
US3449593A (en) * 1964-10-26 1969-06-10 Digitronics Corp Signal slope derivative detection apparatus
US3573641A (en) * 1967-03-27 1971-04-06 Control Data Corp Electronic filter
US3541459A (en) * 1968-01-30 1970-11-17 Webb James E Noise limiter
US3584235A (en) * 1968-10-18 1971-06-08 Bell Telephone Labor Inc Video defect eliminator
US3805170A (en) * 1969-01-03 1974-04-16 Us Navy Transition detector
US3594612A (en) * 1970-02-24 1971-07-20 Forbro Design Corp Overvoltage protector for the load of fast-slewing regulated power supplies
US3626214A (en) * 1970-03-03 1971-12-07 Sperry Rand Corp Bipolar input bistable output trigger circuit
US3678296A (en) * 1970-04-14 1972-07-18 American Optical Corp Electrical signal slope polarity change detector
US3711779A (en) * 1970-11-17 1973-01-16 Instrumentation Specialties Co Apparatus for determining and characterizing the slopes of time-varying signals
US3798559A (en) * 1971-04-20 1974-03-19 Matsushita Electric Ind Co Ltd Noise reduction system
US3770940A (en) * 1971-11-12 1973-11-06 Ibm Optical bar coding scanning apparatus
US3751636A (en) * 1972-06-01 1973-08-07 Rca Corp Signal transition detection circuit
US3789458A (en) * 1972-06-14 1974-02-05 Kenneth J Brown Hog skinning ii
US3958132A (en) * 1974-04-25 1976-05-18 Sun Oil Company Of Pennsylvania Slope change detector
US3931580A (en) * 1974-06-10 1976-01-06 Xerox Corporation Digital line receiver circuit
US3969612A (en) * 1974-06-11 1976-07-13 Recognition Equipment Incorporated Bar code reader enhancement
US4000397A (en) * 1975-03-21 1976-12-28 Spectra-Physics, Inc. Signal processor method and apparatus
US3995224A (en) * 1975-04-30 1976-11-30 Rca Corporation Fast automatic gain control circuit with adjustable range
US4007377A (en) * 1975-09-08 1977-02-08 The Singer Company Optical scanning system for universal product code
US4016481A (en) * 1975-11-26 1977-04-05 Gte Automatic Electric Laboratories Incorporated Unmatched field effect transistors providing matched voltage-controlled resistances
US4020357A (en) * 1976-01-29 1977-04-26 Metrologic Instruments, Inc. Signal processing for print scanners
US4091379A (en) * 1976-05-03 1978-05-23 Litton Business Systems, Inc. Analog to digital wave shaping system
US4053737A (en) * 1976-06-25 1977-10-11 Recognition Equipment Incorporated Magnetic reader for bar encoded characters
US4101072A (en) * 1976-10-21 1978-07-18 The Singer Company Data-gathering device for scanning data having a variable amplitude modulation and signal to noise ratio
JPS53128230A (en) * 1977-04-14 1978-11-09 Shinko Electric Co Ltd Method of reading bar code information in label reader
GB1587171A (en) * 1977-04-15 1981-04-01 Vickers Ltd Bar-coded data reading terminals
US4157509A (en) * 1977-06-13 1979-06-05 Honeywell Inc. Variable reference signal generating circuit and analog comparator utilizing hysteresis
US4121121A (en) * 1977-09-13 1978-10-17 Computer Identics Corporation Follower response control circuit
US4339727A (en) * 1978-03-07 1982-07-13 Nippon Electric Co., Ltd. Waveform converting circuit
US4192003A (en) * 1978-04-13 1980-03-04 International Business Machines Corporation Signal recovery method and apparatus
ZA782493B (en) * 1978-05-01 1979-12-27 Anglo Amer Corp South Africa Rate of change detection
US4360798A (en) * 1978-05-31 1982-11-23 Symbol Technologies, Inc. Portable laser scanning arrangement for and method of evaluating and validating bar code symbols
US4251798A (en) * 1978-05-31 1981-02-17 Symbol Technologies Portable laser scanning arrangement for and method of evaluating and validating bar code symbols
US4243988A (en) * 1979-03-01 1981-01-06 The Bendix Corporation Means for improving angular resolution of incoherent pulse radar systems
US4335301A (en) * 1979-09-27 1982-06-15 Interface Mechanisms, Inc. Wave shaping circuit for electro-optical code readers
US4306194A (en) * 1979-10-11 1981-12-15 International Business Machines Corporation Data signal detection circuit
US4496831A (en) * 1980-02-29 1985-01-29 Symbol Technologies, Inc. Portable laser scanning system and scanning methods
US4387297B1 (en) * 1980-02-29 1995-09-12 Symbol Technologies Inc Portable laser scanning system and scanning methods
US4593186A (en) * 1980-02-29 1986-06-03 Symbol Technologies, Inc. Portable laser scanning system and scanning methods
US4369361A (en) * 1980-03-25 1983-01-18 Symbol Technologies, Inc. Portable, stand-alone, desk-top laser scanning workstation for intelligent data acquisition terminal and method of scanning
US4337434A (en) * 1980-05-02 1982-06-29 Leeds & Northrup Company Compensator for slowly responding sensors
US4394683A (en) * 1980-06-26 1983-07-19 Diffracto Ltd. New photodetector array based optical measurement systems
US4384219A (en) * 1980-12-29 1983-05-17 Motorola, Inc. Voltage comparator hysteresis control circuit
DE3109288C2 (en) * 1981-03-11 1985-01-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Optical reading device for characters encoded in bar code writing
US4408344A (en) * 1981-04-09 1983-10-04 Recognition Equipment Incorporated OCR and Bar code reader using multi port matrix array
US4399474A (en) * 1981-08-10 1983-08-16 Ampex Corporation Automatic threshold tracking system
US4387298A (en) * 1981-11-27 1983-06-07 Burroughs Corporation Recognition logic circuit for bar code reader systems
US4468705A (en) * 1981-12-07 1984-08-28 Exxon Research And Engineering Co. Data transition enhancement
US4460120A (en) * 1982-01-25 1984-07-17 Symbol Technologies, Inc. Narrow bodied, single- and twin-windowed portable laser scanning head for reading bar code symbols
US4673805A (en) * 1982-01-25 1987-06-16 Symbol Technologies, Inc. Narrow-bodied, single- and twin-windowed portable scanning head for reading bar code symbols
US4758717A (en) * 1982-01-25 1988-07-19 Symbol Technologies, Inc. Narrow-bodied, single-and twin-windowed portable laser scanning head for reading bar code symbols
US4409470A (en) * 1982-01-25 1983-10-11 Symbol Technologies, Inc. Narrow-bodied, single-and twin-windowed portable laser scanning head for reading bar code symbols
US4736095A (en) * 1982-01-25 1988-04-05 Symbol Technologies, Inc. Narrow-bodied, single- and twin-windowed portable laser scanning head for reading bar code symbols
CA1203290A (en) * 1982-04-28 1986-04-15 Yoshio Shimizu Signal comparing circuit
US4517455A (en) * 1982-10-04 1985-05-14 Texas Instruments Incorporated Dual peak detector
JPS5979684A (en) * 1982-10-28 1984-05-08 Casio Comput Co Ltd Signal converting circuit
US4727314A (en) * 1982-12-23 1988-02-23 The United States Of America As Represented By The Secretary Of The Air Force Transient detector apparatus
US4535294A (en) * 1983-02-22 1985-08-13 United Technologies Corporation Differential receiver with self-adaptive hysteresis
US4575625A (en) * 1983-09-27 1986-03-11 Knowles Carl H Integral hand-held laser scanner
JP2724996B2 (en) * 1983-12-20 1998-03-09 パイオニア株式会社 Relative position detection device
US4548211A (en) * 1984-01-12 1985-10-22 Marks Lloyd A Computer assisted admittance plethysmograph
US4607156A (en) * 1984-03-26 1986-08-19 Symbol Technologies, Inc. Shock-resistant support structure for use in portable laser scanning heads
US4585990A (en) * 1984-04-11 1986-04-29 Rockwell International Corporation Largest amplitude transient detector
JPS6118636U (en) * 1984-07-06 1986-02-03 アルプス電気株式会社 Waveform shaping circuit device
US4665318A (en) * 1984-10-11 1987-05-12 Canon Kabushiki Kaisha Recording medium mark detector
US4631737A (en) * 1984-12-06 1986-12-23 Motorola, Inc. Self biasing direct coupled data limiter
US4835374A (en) * 1985-02-28 1989-05-30 Symbol Technologies, Inc. Portable laser diode scanning head
DE3686494T2 (en) * 1985-02-28 1993-04-01 Symbol Technologies Inc PORTABLE SCAN HEAD WITH LASER DIODE.
US4644410A (en) * 1985-03-11 1987-02-17 R. A. McDonald Dynamic threshold binary generator
JP2641421B2 (en) * 1985-03-22 1997-08-13 株式会社日立製作所 Optical detection method, optical information reproducing device, and signal detection circuit
JPS6260074A (en) * 1985-09-10 1987-03-16 Tokyo Electric Co Ltd Bar code scanner
US4727270A (en) * 1986-05-08 1988-02-23 North American Philips Corporation Noise immune circuit for use with frequency sensor
US5227614A (en) * 1986-08-15 1993-07-13 Norand Corporation Core computer processor module, and peripheral shell module assembled to form a pocket size data capture unit
US4877949A (en) * 1986-08-08 1989-10-31 Norand Corporation Hand-held instant bar code reader system with automated focus based on distance measurements
US4798943A (en) * 1986-09-30 1989-01-17 Spectra-Physics, Inc. Method and system for control of a bar code scanner threshold
US4870262A (en) * 1987-01-06 1989-09-26 Alps Electric Co., Ltd. Signal processing apparatus and binary encoder circuit for the same
JPS63169816A (en) * 1987-01-07 1988-07-13 Nec Corp Voltage comparator circuit
US4808804A (en) * 1987-01-28 1989-02-28 Symbol Technologies, Inc. Bar code symbol readers with variable spot size and/or working distance
DE3710871A1 (en) * 1987-04-01 1988-10-20 Standard Elektrik Lorenz Ag CIRCUIT FOR SHAPING A MEASURING SIGNAL VOLTAGE IN A RECTANGULAR SIGNAL
NL8700948A (en) * 1987-04-22 1988-11-16 Philips Nv DETECTION DEVICE FOR DETECTION OF SIGNAL CHANGES IN AN IMPULSE SIGNAL.
US4749879A (en) * 1987-06-18 1988-06-07 Spectra-Physics, Inc. Signal transition detection method and system
US4819197A (en) * 1987-10-01 1989-04-04 Canadian Patents And Development Limited-Societe Canadienne Des Brevets Et D'exploitation Limitee Peak detector and imaging system
JPH06103765B2 (en) * 1987-10-30 1994-12-14 日本電気株式会社 Semiconductor laser bias current control method
US5022052A (en) * 1987-11-13 1991-06-04 Seismograph Service Corp. Analog signal binary transmission system using slope detection
US4866400B1 (en) * 1988-01-15 1999-08-31 Eg & G Instr Inc Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system
US4914387A (en) * 1988-04-04 1990-04-03 The Torrington Company Magnetic speed sensor with an adaptive threshold circuit for use with a bearing assembly
US4965782A (en) * 1988-05-26 1990-10-23 Storage Technology Partners Ii Off-track bit shift compensation apparatus
JPH01317077A (en) * 1988-06-17 1989-12-21 Toshiba Corp Clamp circuit
US4926442A (en) * 1988-06-17 1990-05-15 International Business Machines Corporation CMOS signal threshold detector
US4845348A (en) * 1988-06-20 1989-07-04 Ncr Corporation Method and apparatus for reading bar code magnetic ink characters
US4864167A (en) * 1988-08-01 1989-09-05 Tektronix, Inc. Dual function peak metering circuit
IT1223867B (en) * 1988-10-25 1990-09-29 Marelli Autronica CIRCUIT FOR THE PROCESSING OF THE SIGNAL GENERATED BY AN ELECTROMAGNETIC ROTATION SENSOR OF THE VARIABLE RELUCTANCE TYPE
JP2729088B2 (en) * 1989-09-22 1998-03-18 富士通株式会社 Barcode reader processing unit
US5268564A (en) * 1990-08-03 1993-12-07 Symbol Technologies, Inc. Bar code scanner actuated by detection of scanner motion
US5159340A (en) * 1990-08-31 1992-10-27 Hewlett-Packard Company Signal digitizer for bar code readers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219152A (en) * 1979-02-21 1980-08-26 International Business Machines Corporation Dual threshold comparator circuit
US4243876A (en) * 1979-07-25 1981-01-06 Westinghouse Electric Corp. Background light intensity compensation circuit for a line scan camera system
EP0240767A2 (en) * 1986-04-10 1987-10-14 Hewlett-Packard Company Digital bar code slot reader
US4833309A (en) * 1987-06-13 1989-05-23 Tohoku Ricoh Co., Ltd. Bar-code reading apparatus
EP0400969A1 (en) * 1989-05-30 1990-12-05 Fujitsu Limited Circuitry for processing an analog signal obtained by scanning a bar code
EP0433593A2 (en) * 1989-11-20 1991-06-26 Symbol Technologies, Inc. Bar code symbol readers with edge enhancement

Also Published As

Publication number Publication date
US5461223A (en) 1995-10-24
TW232737B (en) 1994-10-21
CA2106715A1 (en) 1994-04-10
JPH06215167A (en) 1994-08-05
US5548109A (en) 1996-08-20
US5536927A (en) 1996-07-16
US5536929A (en) 1996-07-16
CA2106715C (en) 1997-03-18
US5528023A (en) 1996-06-18
EP0592048A2 (en) 1994-04-13

Similar Documents

Publication Publication Date Title
EP0592048A3 (en) Bar code detecting circuitry
US5552591B1 (en) Presence/absence bar code
GB9001817D0 (en) Bar code reading system
EP0524029A3 (en) Hand held bar code reader
DE69209504D1 (en) Hydroxylfunktionelle polyethersulfonamide als thermoplastisches barriereharz
GB9306624D0 (en) Condition detecting units
AU3685293A (en) Bar code
GB2259941B (en) Security bar
EP0550269A3 (en) Bar code printer
GB9524306D0 (en) Bar codes
EP0516927A3 (en) Barcode system
GB9016379D0 (en) Bar code reader
GB2256188B (en) Compressed-air-fed turning bar
EP0488177A3 (en) Bar code system
GB2304955B (en) Circuitry for bar code scanners
GB9224898D0 (en) Detection
GB2280288B (en) Code sequence detection
EP0524653A3 (en) Bar code reader
GB2228811B (en) Bar code printer
GB9307660D0 (en) Distributed sensing
GB9012343D0 (en) Bar code reader
GB2262087B (en) Turning bar
IL103193A0 (en) Bar code reader
KR950001980U (en) Code sensor
GB2253293B (en) Bar code printer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE FR GB IE IT LI LU NL

RHK1 Main classification (correction)

Ipc: G06K 7/10

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE FR GB IE IT LI LU NL

17P Request for examination filed

Effective date: 19950209

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CLINICAL DIAGNOSTIC SYSTEMS, INC.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: JOHNSON & JOHNSON CLINICAL DIAGNOSTICS, INC.

17Q First examination report despatched

Effective date: 19970408

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19980830